Electricity Flashcards
What is friction
Resistance against the movement of an object as a result of its contact with another object
What holds atoms together
Electrostatic attraction
What is a spark
When electrons move across an air gap and they heat enough to cause a glow
What is a van Dee graaff generator
A build up of friction in large amounts on a metal dome
Electrolysis is what
The break down of a substance into its component elements by passing an electric current through a liquid or solution. We can also use it to purify substances
What is electroplating
When elcrolises is used to plate objects in a process that can use a pure copper ecectrode and an impure one, so the impure electrodes copper wil start to deposit on the pure one and so wil break down
How is lightning made
Friction between particles in the clouds causes regions to build up with charge and be released as electro static discharge
